In 1867, at the height of Grant's popularity, Washington portraitist William Cogswell did a painting of the entire family, which soon proved a favorite for such printmakers as John Sartain, who produced this mezzotint. Although Julia and Ulysses were quickly gaining social recognition in the nation's capital, their four children were considerably less known. The oldest son, Frederick Dent Grant (1850–1912), is depicted in his West Point cadet uniform. He graduated in 1871. During the war, he accompanied his father in the Vicksburg campaign, and years later gave his father valuable assistance in overseeing the publication of his Personal Memoirs. Ulysses S. Grant, Jr. (1852–1929), called Buck, attended Harvard University during his father's presidency, and afterward was, unfortunately, looked upon by the family as a financial manager. Buck's real talent emerged only years later, when he moved to California and prospered in real estate with his younger brother, Jesse Root Grant (1858–1934). He is dressed in a kilt, a whim of his mother's that he disliked. Jesse, however, was the family showman, and once mimicked his stage-shy father making a speech. Ellen Grant (1855–1922), called Nellie, was the joy of her father. At eighteen, she brought tears to his eyes on the day that she married a young Englishman, Algernon Sartoris, in the White House.